ARDS	Acute respiratory distress syndrome
HLH	Hemophagocytic lymphohistiocytosis
NK	Natural killer
MHC	Major histocompatibility complex
KIR	Killer cell immunoglobulin receptors
IFN	Interferon
TLR	Toll-like receptor
ADCC	Antibody-dependent cellular cytotoxicity
TNF	Tumor necrosis factor
MIP	Macrophage inflammatory protein
DC	Dendritic cells
NCR	Natural cytotoxicity receptors
LDL	Low density lipoprotein
Th1	T helper cell 1
SLE	Systemic lupus erythematosus
HLA	Human leukocyte antigen
IL	Interleukin
PD-1	Programmed cell death protein
MAS	Macrophage activation syndrome
RSV	Respiratory syncytial virus
SARS	Severe acquired respiratory syndrome
ACE2	Angiotensin-converting enzyme 2
ANKL	Aggressive natural killer leukemia
JIA	Juvenile idiopathic arthritis
MS	Multiple sclerosis